Today, in most countries you can not buy a house or a motorbike for Bitcoin, although the first case of selling a house full of cryptocurrency has already been registered in the history. In the future, this is normal, when you buy a car and pay off cryptocurrency. In this case the buyer will be to decide whether or not he disclose your personal data to the state and, accordingly, pay taxes, or he prefers to make a transaction anonymously ready. Of course, if the authorities want to make such transactions within the law. But even so, buy a car or a weapon for Bitcoins can be "with it".